One of this year's biggest triple-A game releases is Rocksteady Studios' Batman: Arkham Knight, and a new trailer has revealed some extra characters for the game that players will be able to control.

Watching the trailer below you will see Robin, Nightwing and Catwoman aiding Batman during some scuffles. The inclusion of Batman's allies in combat is part of the new 'Dual Play' mechanic, which allows players to switch between Batman and his buddies during brawls.

Batman: Arkham Knight is the third part in the Arkham trilogy from Rocksteady, and will be the final chapter in the series. The game is due to launch on 23rd June worldwide for PS4, Xbox One, and PC.